/*
 * Copyright (c) 2008 James Molloy, Jörg Pfähler, Matthew Iselin
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef KERNEL_PROCESSOR_X86_COMMON_PROCESSOR_H
#define KERNEL_PROCESSOR_X86_COMMON_PROCESSOR_H

void Processor::breakpoint()
{
    asm volatile ("int $3");
}

void Processor::halt()
{
    asm volatile("hlt");
}

void Processor::reset()
{
    // Load null IDT for now
    size_t zero = 0x0;
    asm volatile("lidt %0; int $3" ::"m"(zero));
}

void Processor::haltUntilInterrupt()
{
    bool bWasInterrupts = getInterrupts();
    __asm__ __volatile__("sti; hlt");
    if(!bWasInterrupts)
        setInterrupts(false);
}

#endif
